The man left with an undisclosed amount of money, according to the report.

A 16-year-old Fond du Lac boy was arrested later on a charge of being party to the crime of armed robbery.

According to a press release from police:

A witness followed the 18-year-old suspect, who was wearing a black hooded sweatshirt and mask, to an address on Water Street.

Police officers surrounded the house and received no response as they tried to make contact with the man. As the SWAT team arrived, negotiators were able to talk him into coming out. He was arrested without incident and is being held in the Fond du Lac County Jail on a charge of armed robbery.

Police Capt. Steve Klein said police recovered evidence related to the robbery inside the man's home. No one was injured in the incident.

The 18-year-old appeared on the Fond du Lac County Jail list Tuesday but did not make an initial court appearance.

Online court records reveal that he is nearing the end of two years probation that was ordered in a theft/criminal trespass to a dwelling case. That case resulted in jail time after his probation was revoked.

He was involved in a different theft case that resulted in spending three months in jail.